Satoshi Nakamizo, Yuki Sugiura, Yoshihiro Ishida, Yoko Ueki, Satoru Yonekura, Hideaki Tanizaki, Hiroshi Date, Akihiko Yoshizawa, Teruasa Murata, Kenji Minatoya, Mikako Katagiri, Seitaro Nomura, Issei Komuro, Seishi Ogawa, Saeko Nakajima, Naotomo Kambe, Gyohei Egawa, Kenji Kabashima
Sarcoidosis is a disease of unknown etiology in which granulomas form throughout the body and is typically treated with glucocorticoids, but there are no approved steroid-sparing alternatives. Here, we investigated the mechanism of granuloma formation using single-cell RNA-Seq in sarcoidosis patients. We observed that the percentages of triggering receptor expressed on myeloid cells 2-positive (TREM2-positive) macrophages expressing angiotensin-converting enzyme (ACE) and lysozyme, diagnostic makers of sarcoidosis, were increased in cutaneous sarcoidosis granulomas...
December 1, 2023: Journal of Clinical Investigation